I can't remember where i read it(poss now defunct RKU support forum) but Pushick had modified part of the operations to enchance some part of the tool's functionability.This might have been a trade off with reguards slower scan times but IRC the modification(improvement) had EP_X0FF seal of approval.

Still folks i think your making a fuss about nothing.
RKU is still the most advanced and effective same drive forensic ARK tool and it is still free

If i learned anything at all about exciting and useful detection programs, and with any programs for that matter, it's that at some point along the way, eventually updated versions will stumble and maybe even fall hard. That's why i keep "ALL" versions from beta releases on up, safely stored to return to them should that need happen to arise. This is no perfect science by any stretch and seems it requires very sensitive attention to detail, and even then a flaw can crop up. It's just the unmistakable nature from the originators of the Platform we all use. $M Windows